<?php
/**
 * The template for displaying search forms in Twenty Eleven
 *
 * @package WordPress
 * @subpackage Twenty_Eleven
 * @since Twenty Eleven 1.0
 */
?>

        <form class="form-search" id="searchForm" action="<?php echo esc_url( home_url( '/' ) ); ?>" method="get">
            <div class="control-group">
                <input type="text" class="input-medium search-query" name="s" id="s" placeholder="Search...">
                <button class="search" type="submit"><i class="icon-search"></i></button>
            </div>
        </form>